const mysql = require("mysql");

var con = mysql.createConnection({
    host:'localhost',
    port:3306,
    user:'root',
    password:'',
    database:'cyw'
})
var userName = process.argv[2];

var deleteSql = "delete from users where userName=?";

con.query(deleteSql,[userName],(err,result) => {
    if(err){
        console.log(err);
    }else{
        console.log(result)
    }
})